From: Seth Forshee <seth.forshee@canonical.com>
To: Aaron Lu <aaron.lu@intel.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>, Ben Jencks <ben@bjencks.net>,
Len Brown <lenb@kernel.org>,
linux-acpi@vger.kernel.org, joeyli <jlee@suse.com>,
Matthew Garrett <mjg59@srcf.ucam.org>
Subject: Re: [PATCH] ACPI: Disable Windows 8 compatibility for some Lenovo ThinkPads
Date: Mon, 22 Apr 2013 08:56:51 -0500 [thread overview]
Message-ID: <20130422135651.GB31365@thinkpad-t410> (raw)
In-Reply-To: <51753DB0.9010703@intel.com>
On Mon, Apr 22, 2013 at 09:40:00PM +0800, Aaron Lu wrote:
> On 04/22/2013 09:06 PM, Seth Forshee wrote:
> >On Mon, Apr 22, 2013 at 08:11:17PM +0800, Aaron Lu wrote:
> >>On 04/22/2013 07:51 PM, Rafael J. Wysocki wrote:
> >>>I suppose we need to blacklist them to start with. I wouldn't like to apply
> >>>any general changes before we know how many different systems are affected by
> >>>this particular issue.
> >>
> >>I totally agree.
> >
> >Are you sure that all of these machines have an alternate interface for
> >userspace to change the brightness? I know that I've got a non-Lenovo
> >machine with nVidia graphics for which nouveau exposes no backlight
>
> What's the problem with this system then? The same as the thinkpads in
> bug 51231?
There's no problem with that system; it has another working backlight
interface. I'm only mentioning it to demonstrate that taking away the
ACPI interface could leave some machines without any backlight control
mechanism that Linux currently supports.
Seth
next prev parent reply other threads:[~2013-04-22 13:57 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-11 16:21 [PATCH] ACPI: Disable Windows 8 compatibility for some Lenovo ThinkPads Seth Forshee
2013-02-11 17:52 ` Matthew Garrett
2013-02-11 19:06 ` Seth Forshee
2013-02-11 19:09 ` Matthew Garrett
2013-02-11 19:31 ` Rafael J. Wysocki
2013-02-12 3:05 ` Seth Forshee
2013-02-13 20:32 ` Seth Forshee
2013-02-13 20:55 ` Matthew Garrett
2013-02-13 21:04 ` Ben Jencks
2013-02-13 21:49 ` Seth Forshee
2013-02-13 21:46 ` Seth Forshee
2013-02-13 21:54 ` Matthew Garrett
2013-02-13 22:04 ` Seth Forshee
2013-03-07 19:38 ` Seth Forshee
2013-03-07 19:39 ` [PATCH 1/5] ACPICA: Add interface for getting latest Windows version requested via _OSI Seth Forshee
2013-03-07 19:39 ` [PATCH 2/5] acpi_video: Avoid unnecessary conversions between backlight levels and indexes Seth Forshee
2013-03-07 19:39 ` [PATCH 3/5] acpi_video: Add workaround for broken Windows 8 backlight implementations Seth Forshee
2013-04-04 11:44 ` Aaron Lu
2013-04-04 12:35 ` Seth Forshee
2013-04-04 13:46 ` Aaron Lu
2013-04-04 14:02 ` Seth Forshee
2013-04-04 14:27 ` Aaron Lu
2013-03-07 19:39 ` [PATCH 4/5] acpi_video: Disable use of _BQC when value doesn't match those set through _BCM Seth Forshee
2013-03-07 19:39 ` [PATCH 5/5] acpi_video: Don't handle ACPI brightness notifications by default Seth Forshee
2013-08-02 5:55 ` Aaron Lu
2013-08-02 14:41 ` Rafael J. Wysocki
2013-08-02 14:52 ` Aaron Lu
2013-08-03 0:26 ` Rafael J. Wysocki
2013-08-03 9:46 ` Aaron Lu
2013-08-03 11:23 ` Rafael J. Wysocki
2013-08-03 12:10 ` Aaron Lu
2013-08-03 22:07 ` Rafael J. Wysocki
2013-08-04 1:08 ` Aaron Lu
2013-03-18 21:25 ` [PATCH] ACPI: Disable Windows 8 compatibility for some Lenovo ThinkPads Seth Forshee
2013-04-02 5:18 ` Ben Jencks
2013-04-02 9:15 ` Aaron Lu
2013-04-02 11:23 ` Matthew Garrett
2013-04-02 13:44 ` Aaron Lu
2013-04-02 19:08 ` Matthew Garrett
2013-04-19 12:24 ` Seth Forshee
2013-04-20 22:06 ` Rafael J. Wysocki
2013-04-21 2:29 ` Seth Forshee
2013-04-21 15:46 ` Henrique de Moraes Holschuh
2013-02-13 21:09 ` Ben Jencks
2013-04-01 1:53 ` Aaron Lu
2013-04-01 13:03 ` Seth Forshee
2013-04-02 9:08 ` Aaron Lu
2013-04-02 13:00 ` Seth Forshee
2013-04-02 13:43 ` Aaron Lu
2013-04-03 7:04 ` Ben Jencks
2013-04-03 7:27 ` Aaron Lu
2013-04-03 13:45 ` Seth Forshee
2013-04-04 11:39 ` Aaron Lu
2013-04-19 3:15 ` Aaron Lu
2013-04-20 22:06 ` Rafael J. Wysocki
2013-04-21 11:07 ` Aaron Lu
2013-04-21 12:11 ` Aaron Lu
2013-04-21 21:42 ` Rafael J. Wysocki
2013-04-22 9:39 ` Aaron Lu
2013-04-22 11:51 ` Rafael J. Wysocki
2013-04-22 12:11 ` Aaron Lu
2013-04-22 13:06 ` Seth Forshee
2013-04-22 13:40 ` Aaron Lu
2013-04-22 13:56 ` Seth Forshee [this message]
2013-04-22 14:07 ` Aaron Lu
2013-04-22 15:11 ` Seth Forshee
2013-04-22 2:18 ` joeyli
2013-04-22 10:08 ` Aaron Lu
2013-04-22 12:00 ` joeyli
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